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Eight green DDR4 ECC registered DIMMs in a row

OWC

OWC 128GB (8x16GB) DDR4 2400 ECC RDIMM Cisco UCS B420 M4 C460 M4

SKU CH-YP0V-A7CN7

128 GB ECC registered DDR4 kit with eight 16 GB modules at 2400 MHz CL17 for Cisco UCS B420 M4 and C460 M4 servers

  • Total capacity128 GB (8 × 16 GB)
  • Rated speedDDR4 2400 (PC4 19200)
  • CAS latencyCL17
  • Rated voltage1.2 V
  • Buffer typeRegistered
  • Memory rank1Rx4

Capacity 128GB (8 x 16GB)

  • 128 GB kit expands server capacity with eight 16 GB modules
  • ECC registered design protects data integrity in critical workloads
  • DDR4 2400 CL17 timing delivers responsive throughput for virtualization
  • 2 V operation reduces power draw per module
  • Validated for Cisco UCS B420 M4 and C460 M4 platforms

System-Specific Server Memory Kit

This OWC kit provides 128GB of DDR4 ECC Registered memory across eight 16GB modules. It is built for Cisco UCS B420 M4 and C460 M4 servers that require registered DIMMs. The modules run at 2400 MT/s with CL17 latency at 1.2V. It is not compatible with standard desktop computers or consumer motherboards.

Verify Server Compatibility Before Ordering

Confirm that your Cisco UCS B420 M4 or C460 M4 system uses DDR4 registered ECC memory and supports 1Rx4 rank configuration. This kit will not work with unbuffered or load-reduced DIMMs and cannot be mixed with those types. Check the system documentation for maximum capacity per slot and total population rules before installation.

Replaces Cisco Part Numbers Directly

The modules replace Cisco part numbers UCSMR1X161RVA and UCSMR1X161RVG for straightforward procurement. No additional accessories or software are included in the kit. The value is the validated compatibility and JEDEC-compliant construction for immediate server deployment.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $878.99
Pricier than about 59% of the 21,161 comparable items (median $397.99).
Total capacity 128 GB (8 × 16 GB)
Higher than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $6.87 per GB
Cheaper than about 58% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameOWC
Part number2R4D41R4128K
Total capacity128 GB (8 × 16 GB)
Product type288-Pin DDR4 ECC RDIMM
Performance
Rated speedDDR4 2400 (PC4 19200)
Memory
CAS latencyCL17
ECC supportYes
Buffer typeRegistered
Memory rank1Rx4
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsCisco UCS B420 M4
Cisco UCS C460 M4 (DDR4)

Other versions of this model

5 more in the same range

Questions about this item

What is included in the OWC 128GB DDR4 2400 ECC RDIMM kit and is anything else required?

The kit contains eight 16GB DDR4 2400 PC4-19200 CL17 1Rx4 288-pin 1.2V ECC Registered RDIMM modules. No additional parts are needed for installation in a compatible Cisco UCS server.

How do I choose between the available versions or capacities for this memory upgrade?

This product is a single 128GB kit comprised of eight 16GB modules. Select it when your Cisco UCS B420 M4 or C460 M4 (DDR4) requires a full 128GB ECC Registered DDR4 2400 population.

What does the DDR4 2400 PC4-19200 rating mean for real-world server performance?

The modules run at 2400 MT/s with CL17 latency and 1.2V voltage, providing registered ECC error correction for data integrity in Cisco UCS B420 M4 and C460 M4 (DDR4) systems.

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